personally, i still do it out of stubbornness. the old cell phone games weren't real games. they were less than old Atari games. as cell phones evolved, so did the games. eventually we get into the more modern era, and some cell phone games are more 'real' than older console games were.
i acknowledge that modern cell phone games, are often more of a real game than games we had back in the console days.
that said, i'll still consider them not real games for many years to come. don't worry what other people think. if you enjoy them, play them.